Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Local medicament vacuum preloading method for treating dredger fill foundation
The invention belongs to the technical field of engineering, and particularly relates to a local medicament vacuum preloading method for treating a dredger fill foundation. The method comprises the basic steps that firstly, common hydraulic reclamation slurry is blown into a hydraulic reclamation site, after sedimentation of the common hydraulic reclamation slurry is basically stable, appropriate types and numbers of chemical agents are evenly mixed with the slurry through a high-pressure rotary spraying chemical adding method with each drainage plate as the center, and a chemical adding area similar to a cylinder is formed; and then a vacuum load is applied to the precipitate for pre-pressing, the water content of the precipitate is further reduced, loading is stopped after the water content is reduced to a preset requirement, and the vacuum drainage system is dismantled. According to the local medicament vacuum preloading method for treating the dredger fill foundation, firstly, chemicals are added on the basis of traditional vacuum preloading, the engineering characteristics such as the permeability characteristic of dredger fill can be greatly improved, and the water content of the soil body is reduced through drainage; the soil body strength is improved by changing the soil body property through the physical and chemical action of the chemicals; and secondly, on the basis of agent addition, the agent use amount and the mixing process engineering amount are reduced through a local agent addition method, so that the construction period is shortened, and the engineering application value is high.
本发明属于工程技术领域，具体为一种处理吹填土地基的局部药剂真空预压法。本发明的基本步骤为：首先将普通吹填泥浆吹入吹填场地，等待其沉降基本稳定后，以每个排水板为中心通过高压旋喷加药的方法使适当种类与数量的化学药剂与泥浆混合均匀，形成类似圆柱状的加药区域。然后再对沉淀物施加真空荷载进行预压，使沉淀物含水量进一步降低，待降低到预定要求之后停止加载，拆除真空排水系统。本发明首先对传统真空预压基础上添加药剂，能够大幅度改进吹填土的渗透特性等工程特性，通过排水从而降低土体含水率，以及通过药剂物理化学作用改变土体性质来增加土体强度，其次在添加药剂基础上通过局部添加药剂的方法来减少药剂使用量以及混合过程工程量从而缩短工期，降低工程成本，具有较高的工程应用价值。
Local medicament vacuum preloading method for treating dredger fill foundation
The invention belongs to the technical field of engineering, and particularly relates to a local medicament vacuum preloading method for treating a dredger fill foundation. The method comprises the basic steps that firstly, common hydraulic reclamation slurry is blown into a hydraulic reclamation site, after sedimentation of the common hydraulic reclamation slurry is basically stable, appropriate types and numbers of chemical agents are evenly mixed with the slurry through a high-pressure rotary spraying chemical adding method with each drainage plate as the center, and a chemical adding area similar to a cylinder is formed; and then a vacuum load is applied to the precipitate for pre-pressing, the water content of the precipitate is further reduced, loading is stopped after the water content is reduced to a preset requirement, and the vacuum drainage system is dismantled. According to the local medicament vacuum preloading method for treating the dredger fill foundation, firstly, chemicals are added on the basis of traditional vacuum preloading, the engineering characteristics such as the permeability characteristic of dredger fill can be greatly improved, and the water content of the soil body is reduced through drainage; the soil body strength is improved by changing the soil body property through the physical and chemical action of the chemicals; and secondly, on the basis of agent addition, the agent use amount and the mixing process engineering amount are reduced through a local agent addition method, so that the construction period is shortened, and the engineering application value is high.
本发明属于工程技术领域，具体为一种处理吹填土地基的局部药剂真空预压法。本发明的基本步骤为：首先将普通吹填泥浆吹入吹填场地，等待其沉降基本稳定后，以每个排水板为中心通过高压旋喷加药的方法使适当种类与数量的化学药剂与泥浆混合均匀，形成类似圆柱状的加药区域。然后再对沉淀物施加真空荷载进行预压，使沉淀物含水量进一步降低，待降低到预定要求之后停止加载，拆除真空排水系统。本发明首先对传统真空预压基础上添加药剂，能够大幅度改进吹填土的渗透特性等工程特性，通过排水从而降低土体含水率，以及通过药剂物理化学作用改变土体性质来增加土体强度，其次在添加药剂基础上通过局部添加药剂的方法来减少药剂使用量以及混合过程工程量从而缩短工期，降低工程成本，具有较高的工程应用价值。
Local medicament vacuum preloading method for treating dredger fill foundation
一种处理吹填土地基的局部药剂真空预压法
LI YUNHONG (Autor:in) / WU YAJUN (Autor:in) / XU JIALE (Autor:in) / JIN CHENGMAN (Autor:in) / DING ZHENGXIANG (Autor:in) / ZHANG LIXIANG (Autor:in) / QIN RONGRONG (Autor:in) / ZHAO JIMENG (Autor:in)
10.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Method for treating dredger fill foundation through flocculation combined with vacuum preloading
| Europäisches Patentamt | 2015
Vacuum preloading consolidation method appliable to dredger soft soil foundation
| Europäisches Patentamt | 2020
Research on Surface-Layer Improvement Technology for Dredger Fill by Vacuum Preloading
| British Library Conference Proceedings | 2012
| Europäisches Patentamt | 2021